This is a promotional studio photo of the Messengers' Quartet, dated 1956. Standing (l-r) is John Block, Menno Kroeker, and Peter Block. Sitting is Rudy Voth.

This photo shows the Messengers' Quartet in Europe. They were invited to travel for 9 weeks on a music ministry assignment with GEM (Greater Europe Mission), July-August, 1958. Standing are (l-r) John Block, Peter Block, Menno Kroeker, and Rudy Voth.

This is a promotional studio photo of the Messengers' Quartet from the mid-1960s. Pictured are (l-r) Peter Block, John Block, Rudy Voth, and Menno Kroeker.

This photo is a portrait of the Messengers Quartet: (l-r) John Block, Menno Kroeker, Norm Bennet, and Rudy Voth.

This photo is of the Messengers' Quartet performing at an evangelistic meeting.

This photo is on a prayer reminder card of the Gospel Messengers' Quartet and the director. The top photo is of director H. Petkau. Bottom photo is of the quartet. From left to right, back row: Rudy Voth and Menno Kroeker. Front row: John Block and Peter Block.

This image is a promotional photograph of the Gospel Messengers Quartet in 1967 (l-r): Menno Kroeker, Al Voth (pianist), Norm Bennet, John Block, and Rudy Voth.

This photo is of Rudy Boschman (front, left) and the Messengers' Quartet with their guitars. Pictured from left to right are John Block, Rudy Voth, Rudy Boschman, Menno Kroeker, Elmer Dyck, and Al Voth.

This photo is a portrait of the Messengers Quartet: (back, l-r) Ron Carleton, Menno Kroeker, Walter Janzen, Abe Block, (front) Rudy Boschman, and John Block.

This photo is of the Messengers' Quartet singing around a piano. Pictured are (l-r) John Block, Walter Janzen, Menno Kroeker, Abe Block, and Ron Carleton at the piano.

This photo is of the Messengers' Quartet singing into microphones during a performance. Pictured are (l-r) John Block, Walter Janzen, Menno Kroeker, and Abe Block.

This photo is of Rudy Boschman with the Messengers' Quartet gathered around a piano. Picture are (l-r) Rudy Boschman, Ron Carleton, John Block, Walter Janzen, Menno Kroeker, and Abe Block.

This photo is a portrait of the Messengers' Quartet: (back, l-r) John Block, Bill Schroeder, Menno Kroeker, Rudy Boschman, (front) Ron Carelton, and Abe Block.

This photo is of the Messengers Quartet gathered around a piano. Pictured are (l-r) John Block, Rudy Voth, Menno Kroeker, Elmer Dyck, Rudy Boschman, and Al Voth (front). (The photo was taken at a crusade put on by Boschman and the Messengers?].